WHY CHOOSE YOJO?1.All our products have the CE, UL, ISO9001, ROHS, DNV, BV, CCS, NK certificate approved.2. All our stainless steel material are purchased from Chinese biggest supplier, China Bao Steel; All titanium material are imported from Japanese Nippon Steel. We only select the best raw material to our customers.3. We have the professional test machine, every product must pass the water pressure test and gas pressure test, and then we will package them. Otherwise they will be remanufacturing.4. We use first-class wooden case to protect our products.